4 miners dead in cave-in at north Mexico coal mine

The ruling removes the last major obstacle for the $250 million project, located 150 km northeast of Guayaquil.

The West African nation increasingly seeks new partners, such as Russia, in its mining sector.

A deal would cement Boliden’s position as one of Europe’s biggest producers of zinc.

Wolfsberg represents Europe's first fully permitted spodumene mine, and potentially its first lithium concentrate producer.